NAME    [Toc]    [Back]

     getpid, getppid -- get parent or calling process identification

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <sys/types.h>
     #include <unistd.h>

     pid_t
     getpid(void);

     pid_t
     getppid(void);

DESCRIPTION    [Toc]    [Back]

     The getpid() system call returns the process ID of the calling process.
     Though the ID is guaranteed to be unique, it should NOT be used for constructing
 temporary file names, for security reasons; see mkstemp(3)
     instead.

     The getppid() system call returns the process ID of the parent of the
     calling process.

ERRORS    [Toc]    [Back]

     The getpid() and getppid() system calls are always successful, and no
     return value is reserved to indicate an error.

SEE ALSO    [Toc]    [Back]

     gethostid(3)

STANDARDS    [Toc]    [Back]

     The getpid() and getppid() system calls are expected to conform to
     ISO/IEC 9945-1:1990 (``POSIX.1'').

HISTORY    [Toc]    [Back]

     The getpid() function appeared in Version 7 AT&T UNIX.


FreeBSD 5.2.1			 June 4, 1993			 FreeBSD 5.2.1